I'm a german user and i purchased the osmos game in germany at amazon.de. So far The osmos version at amazon is still 1.2 16. In google play is it available in version 2.0.2 and higher .... So why it is not possibe to update the app at amazon ???

We're working on the Amazon update right now, actually. That said, the main addition from 1.x to 2.x is multiplayer, and the online version requires Google Play "Game Services", which isn't available on Amazon. So for now (ie. the next Osmos Amazon update), only local multiplayer will work.

If you'd like to see online multiplayer, bug Amazon. The more nudging they get, the more motivated they'll be to provide this service!